GILLIG LOW FLOOR, Руководство по обслуживанию

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Electrical System
383
Figure 9-23, Multiplexer Component Locations
Multiplex System Components
The multiplexer modules are located in four or five locations inside the bus. Refer to Figure 9- 23 for a
diagram of these locations. The different types of modules are described below.
t-pms-0025* power management module
This module (Figure 9- 24 ) is a switching power supply
circuit which takes a 10–36VDC input and converts it
to “clean” 12VDC power for the multiplex system. All
of the components in the multiplex system receive their
power from this module. A circuit breaker is installed on
the left side of the module. The “Sleep Enable” switch
should always be kept in the “ON” position. The Power
Management Module is located on the Rear Enclosure
Electrical Panel (see the “Electrical Panels”
section of this chapter for location).
Figure 9-24, Power Management Module
zone A & B: Indicator Lamp Strip (light bar) and Air Tank Compartment . Located at the top
of the driver’s windshield’s area, the Indicator Lamp Strip B1 (ID’s #67 and #68) is a part of the
multiplexing network. Located on the ceiling behind the driver’s area in the Air Tank Compartment,
accessible by opening compartment door, are five multiplexer modules:
A1 (ID #64), A2 (ID’s #65 and 66), B2 (ID #69), B3 (ID #70), and B4 (ID #75).
zone C: Exit Door. A single module (on busses with rear exits) is installed in the area above the
rear exit door: C1 (ID #71).
zone D: Rear Enclosure Electrical Panel. This panel is located behind a locking door at the
top of the rear bulkhead. Four multiplexer modules are located here: D1 (ID #72), D2 (ID #73),
D3 (ID #74), and D4 (ID #76). The Power Management Module is also located here.
Radio Box. Located above the left front wheel well, the radio box houses optional ITS (intelligent
transportation systems–GPS and voice annunciator) components: B5 (ID #78).
zone D
zone C
Radio
Box
zone
A & B